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4-8 COMPOUND INEQUALITIES MISS BATTAGLIA ALGEBRA 1 CP OBJECTIVE: SOLVE COMPOUND INEQUALITIES AND ABSOLUTE VALUE INEQUALITIES AND GRAPH THE SOLUTIONS ON A NUMBER LINE.

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WARM UP Which is larger: x 5, y 4, or z 3, where x = 2, y = 3, and z = 4?

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COMPOUND INEQUALITIES JOINED BY AND 32 < t and t < 40 32 < t < 40 t is greater than 32 and less than 40 t is between 32 and 40 Todays temperatures will be above 32 o F, but not as high as 40 o F.

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GRAPH The graph of 32 < t < 40 is an interval on a number line 32 < t < 40

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SOLVE & GRAPH Two inequalities that are joined by the word and or the word or are called compound inequalities. -4 < r 5 < -1

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SOLVE & GRAPH -3 < j + 2 < 7

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SOLVE & GRAPH 4v + 3 < -5 or -2v + 7 < 1

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SOLVE & GRAPH 4 + k > 3 or 6k < -30

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SOLVE & GRAPH 12 > -3x and -2x > -12

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CLASSWORK/ HOMEWORK P. 198 # 3-8, 16-21